APPARATUS FOR CONTROLLING SUPPLY OF POWER OF BATTERY

An apparatus for controlling supply of power of a battery is provided. In particular the apparatus supplies battery power to various loads within a vehicle by a release of a door-lock using a key. The battery power is supplied to the loads by rotation of the key for releasing the door-lock (30) when the power of the battery supplied to the various loads is blocked by relay (10) under control of battery management system (20) to prevent over-discharge.